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MVC framework for Python

Project description

PyMVC

© 2018 SiLeader and Cerussite.

Overview

PyMVC is MVC-like server side framework for python. This framework is using Flask.

How to

How to Install

pip install pymvc

How to Use

import pymvc


# setting: ex1
pymvc.settings.database.database = "pymmvc_example"


# router: ex1. Add route by method
class TopController(pymvc.Controller):
    VIEW = "top.html"

    def get(self, **kwargs):
        pass


pymvc.add_route("/", TopController)


# router: ex2. Add route by decorator
@pymvc.route("/users/<id>")
class UserController(pymvc.Controller):
    VIEW = "user.html"

    def get(self, id):
        return pymvc.render(id=id)


# model: ex1. User manager model
class User(pymvc.Model):
    name = pymvc.StringType()
    id = pymvc.UniqueIdType(primary=True)


if __name__ == '__main__':
    pymvc.app.run()

pymvc.app is Flask instance.

  1. set database name. (use pymvc.settings.database.database property)
  2. create classes
    • Controller class
    • Model class
  3. register controller classes to router.
  4. start app
    • call run() method.
    • use pymvc.app as WSGI app.

Controller

Controller class has VIEW (class variable) and get, post, put and delete instance methods. if you want to support GET method, override get method. these functions' default operation is return abort(405).

Model

Model class is ORM for MongoDB (using pymongo). if inherit it, it creates collection.

collection's data is specified as class variable.

import pymvc


class Other1(pymvc.Model):
    pass


class ModelExample(pymvc.Model):
    string_data = pymvc.StringType()  # string
    int_data = pymvc.IntType()  # integer
    float_data = pymvc.FloatType()  # float
    unique_data = pymvc.UniqueIdType()  # UUID
    foreign_data1 = pymvc.ForeignType(Other1)  # other collection
    foreign_data2 = pymvc.ForeignType("Other2")  # other collection


class Other2(pymvc.Model):
    pass

collection name is snake case of class name. (e.g. User: user, UserInfo: user_info)

Model data type

model data types' constructor parameters are primary and default.

if primary is True, this value is marked as primary key. default is default value.

View

PyMVC add some Jinja2 function.

function operation
load_one(model, primary=None, **query) load one data (using find_one)
load_many(model, primary=None, **query) load all data match query and primary data

model is require parameter. primary is primary key value. key value hint is **query.

Dependencies

  • Flask
  • PyMongo
  • MongoDB

License

Apache License 2.0

Project details


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